Sewage treatment equipment capable of circularly treating

The sewage treatment equipment comprises a first box body and a second box body, the second box body is fixedly connected to the lower end of one side of the first box body, a filtering mechanism is installed at the upper end of the interior of the first box body, and a carrier plate is fixedly connected to the inner wall of the middle of one side of the first box body; the inner wall of the middle part of the other side of the first box body is fixedly connected with a bottom plate, and the sewage treatment device has the beneficial effects that the filtering structure is arranged at the upper end of the interior of the first box body and is used for filtering solid impurities in sewage, and then chemicals are sequentially put into the interior of the first box body and are used for carrying out chemical treatment on the filtered sewage; in the treatment process, a water quality detector arranged in the second box body can detect the sewage, if the sewage does not reach the discharge standard, the sewage in